Square lawn sprinkler



Jan. 18, 1949. s s 2,459,244-

SQUARE LAWN SPRINKLER Filed Oct. 30, 1946 2 Sheets-Sheet l INVENTOR. Asa/Agra Q 69/4273 mya rafi.

Jan. 18, 1949. YD, SELLARS 2,459,244

SQUARE LAWN SPRINKLER Filed Oct. 50, 1946 I 2 Sheets-Sheet 2 j j. Fig.6.

INVENTOR.

Zea/75rd a .fie/kms Patented Jan. 18, 1949 UNITED STATES PATENT OFFICE SQUARE LAWN SPRINKLER Leonard D. Sellars, Culver City, Calif.

Application October 30, 1946, Serial No. 706,551

3 Claims. 1

. This invention relates to a rotary type of lawn sprinkler that is especially designed to distribute water evenly over a square shaped area.

An object of the invention is to provide a sprinkler that saves considerable water by not allowing it to be wasted on driveways, sidewalks or streets, as is the case when a conventional rotary circular sprinkler is used.

Another object of the inventionis to provide a. sprinkler that will prevent dry corners of the lawn that require subsequent hand watering for the proper irrigation thereof,

Another object of the invention is to provide a sprinkler that may be so located and regulated that it will irrigate the complete lawn including the four corners thereof without having to move it from one position to another.

A further'object of the invention is to provide a sprinkler that can be made to distribute water over a rectangular lawn as well as a triangular lawn, as well as a square lawn if desired.

With the above and other objects and advantages in view, the invention consists of the novel details of construction, arrangement and combination of parts more fully hereinafter described, claimed and illustrated in the accompanying drawings in whichp I Figure 1 is an elevational view partly in section of an embodiment of the invention;

' Figure 2 is a plan view thereof;

Figure 3 is an enlarged detailed fragmentary sectional view of the operating mechanism of the device;

Figure 4 is a sectional view on the line 4-4 of Figure 3;

Figure 5 is a sectional view on the line 5-5 of Figure 3;

Figure 6 is a detailed fragmentary view of the water distribution means of the sprinkler and Figure 7 is a fragmentary detailed view partly in section of one of the watering pipes.

Referring more in detail to the drawings, the reference numeral l designates any suitable base which is provided with an inlet conduit ll having a threaded end I 2 adapted to receive the coupling l3 of a conventional garden hose l 4.

The inlet conduit l I communicates with a centrally located threaded bore l in which is threadably mounted in vertical relation to the base [0, a pipe or standard I6. Threadably connected to the upper end of the pipe I6 is the water distribution sleeve l! which is provided in its walls in transverse relation thereto, the rhombical shaped ports l8 which are positioned for use on a square lawn at zero degrees, ninety degrees,

have been formed.

one hundred and eighty degrees and two hundred seventy degrees, with regard to the circumference of the sleeve. Variations of the positions of the ports will'determine the shape of the area to be watered, as a rectangular lawn would have the ports positioned at zero degrees, sixty degrees, one hundred and eight degrees and two hundred and forty degrees. Therefore the difierent areas to be watered are regulated by the position of the ports 18 in the sleeve l1.

Rotatably mounted on sleeve I1 is a second sleeve l9 which is provided with narrow elongated ports 20, which will coincide with ports [8 during the rotation of the revolving head 2! which is press fitted on the sleeve !9 after the ports' 20 Mounted in the head 2| in diametrically opposed relation to each other, and in longitudinal alinement with each other and with the ports 20 in the sleeve H) are the water distributing pipes 22 having the cup shaped nozzles 23 provided with the narrow slit 24 secured to the outer free ends thereof.

As the head 2| rotates and the ports 18 register with the ports 28, the amount of water distributed by the pipes 22 will be regulated to give a maximum amount at the corners and a lesser amount at the sides, thereby producing a square water distributing pattern.

The head 2|, at its lower marginal edge, is provided with an annular right angularly extending flange 25 to which is secured by means of fasteners 2B, the gear 21.

Secured to the pipe IS in spaced parallel relation to gear 2'! is gear 28. Gears 2'! and 28 are of the same diameter and the teeth are of the same size except that by spacing the teeth on gear 28 slightly further apart than the teeth on gear 21, one tooth on gear 28 is eliminated; in other words, gear 28 has one less tooth than gear 21. However, the difference in spacing of the teeth on the gears 21 and 28 is so slight that gear 29 will mesh with both gears at the same time.

Gear 29 is rotatably mounted on the spindle 30, which is threadably mounted on block 3| in vertical relation thereto. Block 3| has a longitudinal bore 32 for the mounting thereof on pipe 33, and set screws 34 entering through the bottom of the block to engage the pipe 33 retain the block 3| in fixed relation to the pipe 33, with gears 21, 28 and 29 in meshing engagement with each other. Washers 35 on the spindle 30 at the top and bottom of the gear 29 permit free rotation of the gear.

Engaging the undersurface of the gear 28 and loosely mounted on pipe I6 is the sleeve or ring 36 which is retained in position by the collar 31 fixedly related to the pipe I6 by the nut screw 38. The sleeve 36 is provided with an inner annular groove 39 which communicateswith the openings 40 in pipe 16. There are four openings,

and each pair of openings islin diametrically opposed relation to each other. Thus water entering the pipe [6 will be discharged from the pipe through openings 40 into the annular.,groove- 39 from whence it enters the diametrically opposed horizontally alined pipes 33 and 4| which are secured to the sleeve 36.

Water entering the pipes 33 and All -causes: the

pipes to revolve around pipe I6 by discharge'of the water through the relatively spaced apertures 42 adjacent the ends of pipes 33 .and M on opposite sides thereof.

In operation with water pressure on, thepipes 33 and 4! revolve in the manner above described.

Withgear 29 mounted onpipe .33, thisrgearrw will revolve about the gears 21 and .28.. Thus gear-21 will be caused to rotate theamount of the ,tooth missing from gear 28 for each revolu'-.-

tion of thesleeve v36.. Thus the arms 22 willac commodate the outer edges and cor-nets vof a square shaped area, while'the armsj33gand, M willacoornmodate the central parthf thesquare. Thus. 'a very slow motion .of rotation of head .2!

gives the best combination of ali'nement of: the

ports l8 and 20. l

, There has thus been provided asprinkler which Willvadequately Water square shaped. areas,'.-which by slight modification can be converted to water a rectangular or triangular shapedare'asand .it

is believed that the structure and .loperationbfthe sprinkler will be apparent tothose skilled ,in

the tart.

It isalsoto be understood that changes in the minor details of construction, arrangement and combination of parts may be resorted to, provided they fall, within the spirit of the invention and the scope of the appended claims.

Having thusdescribed the invention, What is claimed as new and desired to be secured by letters patentis: v

l. A device of the character described, com-. prising a base, a water inlet for said'base, a tubular standard mounted in saidibase and-com: municatin with said inlet, a head rotatably' mounted on the upperend of said standard, a sleeve secured to the inner walls of said head, a sleeve fixed to the upper end of said standard,

having loose contact with the sleeve within said head, ports in said sleeves adapted to allne with each other during the rotation of said head, water distributing arms mounted in said head in horizontal alinement with each other; and in diametrically opposed relation to each other, a gear secured ,ito ream head surroitndihii'fiaifi lstandard,

age'ar of the same size bet-navmgme tooth less than the gear on said head mounted on, said standard below the gear on said head, in parallel :relationxtherewith, a sleeve rotatably mounted on I saidv standard below the gear secured thereto,

water-distributing arms secured, to said sleeve .and rgear mounting means on one of said arms I a gear rotatably mounted on saidlast means,

saidlas't mentioned gear adapted to mesh with a said first mentioned gears to cause rotation of" said lfirstrgear when water thy maid last-'mentionednanms;

2. The. inventionn astiinwclaimwl, whereinodihe ports in zsaid sleeves sarempositioned "inzidiametricatty opposed rotation toiieezchzrothen, 'amltitke ports inwthe .-:sleeve:fixed to the upper endmfithe standard are substantially rhonrhical imeshapefxa 3. The invention-has ..-ini.aclezimzid;whmeinndzhestandard-within.rtheusleeye motataxblyvononnted thereoneds. ported; :and-ssaid: last; mentioned-sleeve is .provided'?-vcith-. an groovecommunist eating with said portssandmithithetarms rsecured to .said-"ll-ast:mentionedisleeven LEONARD...

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